http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47997
--- Comment #25 from Tobias Netzel <tobias.netzel at googlemail dot com> 2011-09-08 16:27:21 UTC --- As for me the patch does what it is expected to do; no more linker warnings when linking objective-c code. I didn't notice anything that might be broken by it.